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POHow to get the next element of an array in javascript?
 

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  1. POHow to get the next element of an array in javascript?
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    <p>I am making my own music player in javascript and am working on the next song button. I have it set up to where the songs get added to the playlist and their corresponding ID number gets stored in an array. Then I index the array looking for the current ID of the song and then when the user hits next it goes to the next song in the array.</p> <p>Here is my code:</p> <pre><code> $(document).ready(function(){ $("#player").prop("volume",".5"); }); var xmlhttp=new XMLHttpRequest(); xmlhttp.open("GET","playlist.xml",false); xmlhttp.send(); xmlDoc=xmlhttp.responseXML; var songlist = new Array(); var currentSong; function song_play(song_id){ var player = document.getElementById("player"); player.setAttribute("src", "Music/"+song_id+".mp3"); player.play(); songlist.push(song_id); alert(JSON.stringify(songlist)); currentSong = song_id; var new_id=song_id-1; $("#marquee").empty(); $("#marquee").append("&lt;span style='color:red;'&gt;Now Playing: &lt;/span&gt;"+xmlDoc.getElementsByTagName("artist")[new_id].childNodes[0].nodeValue+"-"); $("#marquee").append(xmlDoc.getElementsByTagName("track")[new_id].childNodes[0].nodeValue); }; function add_song(song_id,new_id){ var artist = xmlDoc.getElementsByTagName("artist")[new_id].childNodes[0].nodeValue; var track = xmlDoc.getElementsByTagName("track")[new_id].childNodes[0].nodeValue; $("#song_list").append("&lt;a id="+song_id+" href='javascript:void(0)' onclick='song_play(this.id);' class='song'&gt;"+artist+"-"+track+"&lt;/a&gt;&lt;br/&gt;"); }; function nextSong(currentSong){ var currentSongIndex = songlist.indexOf(currentSong); var newSong = songlist[currentSongIndex + 1]; song_play(newSong); }; </code></pre> <p>The problem that I am experiencing is that once I hit the next button, it stops playing music all together.</p>
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